KR950033378A - Low Temperature Rectification System for Manufacturing High Pressure Nitrogen - Google Patents
Low Temperature Rectification System for Manufacturing High Pressure Nitrogen Download PDFInfo
- Publication number
- KR950033378A KR950033378A KR1019950006296A KR19950006296A KR950033378A KR 950033378 A KR950033378 A KR 950033378A KR 1019950006296 A KR1019950006296 A KR 1019950006296A KR 19950006296 A KR19950006296 A KR 19950006296A KR 950033378 A KR950033378 A KR 950033378A
- Authority
- KR
- South Korea
- Prior art keywords
- column
- nitrogen
- passing
- fluid
- oxygen
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 10
- 239000001301 oxygen Substances 0.000 claims 10
- 229910052760 oxygen Inorganic materials 0.000 claims 10
- 239000007788 liquid Substances 0.000 claims 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims 3
- 238000011084 recovery Methods 0.000 abstract 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/04321—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04436—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using at least a triple pressure main column system
- F25J3/04454—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using at least a triple pressure main column system a main column system not otherwise provided, e.g. serially coupling of columns or more than three pressure levels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/34—Processes or apparatus using separation by rectification using a side column fed by a stream from the low pressure column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/42—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/52—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen enriched compared to air ("crude oxygen")
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
본 발명은 고압 및 저압 사이의 압력으로 작동하는 부가적인 컬럼을 사용하는 고압질소를 대량으로 생산하는 저온정류 시스템에 의해 정류생성의 융통성을 개선 시킴으로써 회수율을 최적화할 수 있다.The present invention can optimize the recovery rate by improving the flexibility of rectification by a low temperature rectification system that produces a large amount of high pressure nitrogen using additional columns operating at pressures between high and low pressures.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 공정정류가 공급공기의 터보팽창에 의해 생성되는 본 발명에 따른 바람직한 실시예의 개략적인 도면, 제2도는 공정정류가 중간압력 컬럼으로 부터 취해진 기체 스트림의 터보팽창에 의해 생성되는 본 발명에 따른 바람직한 실시예의 개략적인 도면, 제3도는 공정정류가 폐기기체의 터보팽창에 의해 생성되는 본 발명에 따른 바람직한 실시예의 개략적인 도면, 제4도는 공정정류가 폐기기체의 터보팽창에 의해 생성되는 본 발명에 따른 다른 바람직한 실시예의 개략적인 도면, 제5도는 다소 저압의 질소생성물이 생성되는 본 발명에 따른 바람직한 실시예의 개략적인 도면.1 is a schematic drawing of a preferred embodiment according to the invention in which process rectification is produced by turboexpansion of feed air, and FIG. 2 is in accordance with the invention in which process rectification is produced by turboexpansion of a gas stream taken from an intermediate pressure column. 3 is a schematic drawing of a preferred embodiment according to the invention in which process rectification is produced by turboexpansion of waste gas, and FIG. Schematic drawing of another preferred embodiment according to the invention, FIG. 5 is a schematic drawing of a preferred embodiment according to the invention in which a rather low pressure nitrogen product is produced.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/217,812 US5402647A (en) | 1994-03-25 | 1994-03-25 | Cryogenic rectification system for producing elevated pressure nitrogen |
US8/217,812 | 1994-03-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950033378A true KR950033378A (en) | 1995-12-22 |
KR100208459B1 KR100208459B1 (en) | 1999-07-15 |
Family
ID=22812635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950006296A KR100208459B1 (en) | 1994-03-25 | 1995-03-24 | Cryogenic rectification system for producing elevated pressure nitrogen |
Country Status (9)
Country | Link |
---|---|
US (1) | US5402647A (en) |
EP (1) | EP0674144B1 (en) |
JP (1) | JP2989516B2 (en) |
KR (1) | KR100208459B1 (en) |
CN (1) | CN1075193C (en) |
BR (1) | BR9501196A (en) |
CA (1) | CA2145445C (en) |
DE (1) | DE69502328T2 (en) |
ES (1) | ES2116005T3 (en) |
Families Citing this family (38)
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EP2634517B1 (en) * | 2012-02-29 | 2018-04-04 | L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Process and apparatus for the separation of air by cryogenic distillation |
CN102809261B (en) * | 2012-04-19 | 2014-07-23 | 四川空分设备(集团)有限责任公司 | Cryogenic separation method and cryogenic separation device for preparing low-purity oxygen from air |
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US5069699A (en) * | 1990-09-20 | 1991-12-03 | Air Products And Chemicals, Inc. | Triple distillation column nitrogen generator with plural reboiler/condensers |
US5098457A (en) * | 1991-01-22 | 1992-03-24 | Union Carbide Industrial Gases Technology Corporation | Method and apparatus for producing elevated pressure nitrogen |
US5231837A (en) * | 1991-10-15 | 1993-08-03 | Liquid Air Engineering Corporation | Cryogenic distillation process for the production of oxygen and nitrogen |
US5222365A (en) * | 1992-02-24 | 1993-06-29 | Praxair Technology, Inc. | Cryogenic rectification system for producing high pressure nitrogen product |
US5245832A (en) * | 1992-04-20 | 1993-09-21 | Praxair Technology, Inc. | Triple column cryogenic rectification system |
US5233838A (en) * | 1992-06-01 | 1993-08-10 | Praxair Technology, Inc. | Auxiliary column cryogenic rectification system |
GB9213776D0 (en) * | 1992-06-29 | 1992-08-12 | Boc Group Plc | Air separation |
US5309719A (en) * | 1993-02-16 | 1994-05-10 | Air Products And Chemicals, Inc. | Process to produce a krypton/xenon enriched stream from a cryogenic nitrogen generator |
US5341646A (en) * | 1993-07-15 | 1994-08-30 | Air Products And Chemicals, Inc. | Triple column distillation system for oxygen and pressurized nitrogen production |
-
1994
- 1994-03-25 US US08/217,812 patent/US5402647A/en not_active Expired - Lifetime
-
1995
- 1995-03-24 BR BR9501196A patent/BR9501196A/en not_active IP Right Cessation
- 1995-03-24 KR KR1019950006296A patent/KR100208459B1/en not_active IP Right Cessation
- 1995-03-24 DE DE69502328T patent/DE69502328T2/en not_active Expired - Fee Related
- 1995-03-24 EP EP95104401A patent/EP0674144B1/en not_active Expired - Lifetime
- 1995-03-24 JP JP7090095A patent/JP2989516B2/en not_active Expired - Lifetime
- 1995-03-24 CN CN95103548A patent/CN1075193C/en not_active Expired - Fee Related
- 1995-03-24 CA CA002145445A patent/CA2145445C/en not_active Expired - Fee Related
- 1995-03-24 ES ES95104401T patent/ES2116005T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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EP0674144B1 (en) | 1998-05-06 |
ES2116005T3 (en) | 1998-07-01 |
CA2145445C (en) | 1998-07-07 |
DE69502328T2 (en) | 1998-10-01 |
EP0674144A1 (en) | 1995-09-27 |
JPH07270066A (en) | 1995-10-20 |
CA2145445A1 (en) | 1995-09-26 |
CN1126304A (en) | 1996-07-10 |
KR100208459B1 (en) | 1999-07-15 |
CN1075193C (en) | 2001-11-21 |
US5402647A (en) | 1995-04-04 |
DE69502328D1 (en) | 1998-06-10 |
BR9501196A (en) | 1995-11-28 |
JP2989516B2 (en) | 1999-12-13 |
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